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libata: detect Device Attention support

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Add a new flag ATA_DFLAG_DA to indicate that device supports "Device
Attention".

Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Lin Ming 2012-06-25 16:13:08 +08:00 • committed by Jeff Garzik
parent a606dac368
commit b1354cbb5b
3 changed files with 6 additions and 0 deletions
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include/linux/ata.h
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@ -578,6 +578,7 @@ static inline int ata_is_data(u8 prot)
((u64) (id)[(n) + 0]) )
#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
#define ata_id_has_da(id) ((id)[77] & (1 << 4))
static inline bool ata_id_has_hipm(const u16 *id)
{